What is SDHelper.dll?

The genuine SDHelper.dll file is a software component of Spybot - Search & Destroy by Safer-Networking.
SDHelper.dll is a DLL (Dynamic Link Library) file that belongs to Spybot - Search & Destroy, a program that scans and removes spyware and adware from computers running Windows. DLL files store data, code and resources needed by one or more programs in order to function correctly. This is not a critical Windows component and should be removed if known to cause problems. Removing this file may cause problems while running LogMeIn products. Spybot – Search & Destroy is a freeware, full fledged security program that removes malicious programs and protects systems from online threats while providing live protection from viruses, trojans, malware, etc. The program also features a Boot CD creator, a registry repair tool, startup tools, command line parameters, etc. Spybot – Search & Destroy was created by Patrick Michael Kolla in 2000 while he was still a software engineering student. Safer-Networking Limited is an Irish company that was founded by Patrick Michael Kolla in 2000 to develop and distribute his program, Spybot – Search & Destroy. The company is currently headquartered in Wicklow, Ireland. The company is financially supported by donations from people are over the world.

SDHelper stands for Spybot Search & Destroy Helper File

SDHelper.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about SBSD IE Protection.

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SDHelper.dll file information

The process known as SBSD IE Protection or Blocks URLs that could install spyware, malware etc or Bad download blocker or Spybot - Search & Destroy belongs to software Spybot - Search & Destroy (version 2) or Internet Explorer integration or Blocks URLs that could install spyware, malware etc or JaSMiN 3D Color Changer (version 3000) by Safer Networking (

Description: SDHelper.dll is not essential for the Windows OS and causes relatively few problems. SDHelper.dll is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\ or in a subfolder of the user's profile folder or in a subfolder of the user's "Documents" folder—usually C:\Program Files\Spybot - Search & Destroy\. Known file sizes on Windows 10/8/7/XP are 1,879,896 bytes (70% of all occurrences), 3,214,392 bytes and 15 more variants. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 53707962-6F74-2D53-2644-206D7942484F. The program has no visible window. It is able to monitor web browsers. SDHelper.dll is not a Windows core file. There is no detailed description of this service. The file is a Verisign signed file. SDHelper.dll is digitally signed. SDHelper.dll is able to monitor applications and record keyboard and mouse inputs. Therefore the technical security rating is 48% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with SDHelper.dll, you may want to safely remove the program using the uninstall program of Spybot - Search & Destroy or Safer Networking Ltd. (Control Panel ⇒ Uninstall a Program), search the support area on the Safer-networking website or update the program.

Recommended: Identify SDHelper.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as SDHelper.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the SDHelper.dll process on your PC to see if it is a threat. If SBSD IE Protection has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

This File is installed with Spybot Search & Destroy, which is the best Anti-Spyware available...period! The File is not harmless in anyway, again...period!   -Chad -Chadwørkx™ -Chadwørkz Prøductiønz™
  Chad S. Roe (Tekk)   (further information)
This is a file from Spybot; but, it crashes my browser all the time! Wft! Spybot used to be a great program, but it sucks anymore!!
  WTF Spybot!  
I can't comment on what SDHelper does for my computer's safety, but it will shut my internet down at random times when I'm working in several tabs and I'm just about fed up with it.
Is indeed a part of Spybot Search & Destroy. I have used it for years. Watch for the spoofers that try to mimic a good file.
  Michael L.  
best to stop implanting some crap to registry A++, much better than win Defender
It causes IE to error out on load
spybot is totally safe. get malwarebytes also its good for malware too
  mitchie mitch  
Spybot S&D - Enables permanent blocking of bad IP addresses in Internet Explorer.
  Clifton a.k.a. aNgRyDaD  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of SDHelper.dll: based on 196 votes with 9 reviews. 166 users think SDHelper.dll is essential for Windows or an installed application. 8 users think it's probably harmless. 15 users think it's neither essential nor dangerous. 3 users suspect danger. 4 users think SDHelper.dll is dangerous and recommend removing it. 7 users don't grade SDHelper.dll ("not sure about it").

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Best practices for resolving SDHelper issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active SDHelper process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the SDHelper.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

SDHelper.dll [all]